On Mon, Dec 17, 2018 at 05:50:44PM +0000, lejeczek via CentOS wrote: > I updated to qemu-kvm-common-ev-2.12.0-18.el7_6.1.1.x86_64 (also libvirt) > and my Centos 6.10 kvm guests now do not start. > > Funnily enough Win10 guest are fine, only Centoses cannot start, silently & > without any errors. > > Any care to comment? It looks like you installed CentOS 7 packages on a CentOS 6 system. I'm amazed it even worked. Try removing the packages and re-installing the appropriate packages for CentOS 6. -- Jonathan Billings <billings at negate.org>